Re: [google-cloud-sql-discuss] Issues with Cloud SQL + App Engine

The proxy is automatically installed and started on GAE Flex if you follow the instructions on that page. Quoting the doc: 

"Once deployed, your application uses the Cloud SQL Proxy that is built in to the App Engine flexible environment to communicate with your Cloud SQL instance."

Connecting from Container Builder is a different story and I'm not too familiar with it. In general, migrations are done at deployment time, not at build time.

On Wed, Sep 6, 2017 at 5:27 PM, Mike Hardy <mhardy@localinsights.io> wrote:

Nope, we followed these docs.  The only mention of UNIX sockets are for the proxy. Are you suggesting we install cloud sql proxy during the actual build?

On Wednesday, September 6, 2017 at 5:20:23 PM UTC-7, Vadim Berezniker wrote:

Are you connecting by IP? You should be connecting via a special UNIX sockets to avoid dealing with IP whitelisting: https://cloud.google.com/sql/docs/mysql/connect-app-engine

On Wed, Sep 6, 2017 at 5:03 PM, Mike Hardy <mha...@localinsights.io> wrote:

Hi, we have a web app that runs on GAE and Cloud SQL. GAE fails to communicate with postgres Cloud SQL unless we manually whitelist the GAE IP addresses. Once we whitelist the IP, voila, GAE, Cloud SQL, and our app all work well. However, this process is not scalable. The app will scale up and down and will generate new instances with new IP addresses. It will be impossible to whitelist these IP addresses. Our understanding was that GAE and Cloud SQL are already integrated and dont need this setup but clearly something is going. We're using GAE Flex and Cloud SQL Postgres. How do we try to fix this?

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